Bosch Alternator 12V 150A Foot-mounted Part No. 1986A01040

The Bosch Alternator 12V 150A is a foot-mounted alternator with a 150 amp charge current, listed under Part No. 1986A01040. It is a 12 volt unit, supplied as each, and carries a 12 month warranty.

This alternator is specified as an alternator type excl. vacuum pump, which is an important check when matching it to the vehicle application. The listed fastening type is foot-mounted, so the mounting arrangement needs to match the original unit before purchase.

Bosch notes corrosion resistance for harsh conditions, along with materials selected for long service life and stable performance. A reduction drive is also listed to maintain continual speeds for easier starting, which is useful context when comparing it with the unit currently fitted to the vehicle.

Key Features

• 12V alternator with 150A charge current
• Foot-mounted fastening type
• Alternator type: excl. vacuum pump
• Corrosion resistant construction
• Reduction drive listed for continual speeds and easier starting
• 12 month warranty

Specifications

• Brand: Bosch
• Part No.: 1986A01040
• Product type: Alternator
• Voltage: 12V
• Power rating: 150A
• Alternator charge current: 150A
• Unit of measure: Each
• Manufactured in China

Verified fitment notes

• Volvo C30
• Volvo S40
• Volvo V50
• Volvo V40

Application and Buying Notes

Before ordering, compare the part number 1986A01040 with the number on the alternator being replaced. The key matching points here are the 12V system, 150A output, foot-mounted fastening type, and the fact that this unit is listed as excl. vacuum pump.

The fitment information supplied includes Volvo C30, Volvo S40, Volvo V50 and Volvo V40 applications, but the exact vehicle year and engine setup still need to be checked against the installed unit. On alternators, the mounting style and whether the replacement is for a vacuum-pump-equipped or non-vacuum-pump unit are critical details.

The recommendation for additional repairs is a V-Belt or V-Ribbed Belt, so it is sensible to inspect the drive belt system at the same time. If the belt shows wear, glazing, cracking or noise, replacing it alongside the alternator can help avoid a repeat job.

A 150A alternator is chosen to match the vehicle’s electrical demand, so it should not be treated as a universal substitute. Confirm that the voltage, amperage, mounting arrangement and accessory layout all align with the original equipment before fitting.

If you are working from a vehicle registration or VIN, use that information together with the part number and the alternator’s physical details. That is the safest way to narrow the choice when there are similar Bosch alternators with different mounting or pump arrangements.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number 1986A01040 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type ALTERNATOR, Unit of Measure EACH, Warranty 12 Months, Voltage 12, Fastening Type Foot-mounted, Recommended additional repairs V-Belt/V-Ribbed Belt, Product Group 2 ALTERNATORS, Part No. 1986A01040, Brand BOSCH.

Additional published details for cross-checking include Description Bosch Alternator 12V 150A, Power Rating (Amp) 150, Alternator Charge Current [A] 150, Alternator Type excl. vacuum pump, Manufactured in China, Product Group 1 ROTATING ELECTRICAL.

Bosch Alternator 12V 150A. Part number 1986A01040 should be checked first. Listed voltage is 12. Listed output rating is 150. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A01040, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 150 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Always confirm fitment by matching Part No. 1986A01040, the 12V / 150A specification, the foot-mounted design, and the excl. vacuum pump application details against the vehicle and the unit being replaced.

FAQ

What is the part number for this Bosch alternator?

The listed part number is 1986A01040. For this listing, part number 1986A01040 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include VOLVO C30, VOLVO C30 2007, VOLVO C30 2008. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 150A charge current. For this listing, part number 1986A01040 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include VOLVO C30, VOLVO C30 2007, VOLVO C30 2008. These details should still be checked against the original unit before ordering.

Is this alternator foot-mounted?

Yes. The fastening type is listed as foot-mounted. For this listing, part number 1986A01040 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include VOLVO C30, VOLVO C30 2007, VOLVO C30 2008. These details should still be checked against the original unit before ordering.

Does this alternator include a vacuum pump?

No. It is listed as alternator type excl. vacuum pump. For this listing, part number 1986A01040 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include VOLVO C30, VOLVO C30 2007, VOLVO C30 2008. These details should still be checked against the original unit before ordering.

Which vehicles are listed in the fitment information?

The supplied fitment information includes Volvo C30, Volvo S40, Volvo V40 and Volvo V50 applications. For this listing, part number 1986A01040 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include VOLVO C30, VOLVO C30 2007, VOLVO C30 2008. These details should still be checked against the original unit before ordering.

What other parts should be checked when replacing it?

The listed recommended additional repairs are a V-Belt or V-Ribbed Belt, so the drive belt should be checked at the same time. For this listing, part number 1986A01040 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include VOLVO C30, VOLVO C30 2007, VOLVO C30 2008. These details should still be checked against the original unit before ordering.